Analysis

  • max time kernel
    143s
  • max time network
    158s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13-08-2023 10:16

General

  • Target

    a736c699fe879975bc8daa8525984ba514ae96a294f74d570dff0cbfd2117e24exeexe_JC.dll

  • Size

    5.9MB

  • MD5

    79c80f6c916250dfad7f433e1ff950ee

  • SHA1

    e281b0719592b08b28184decdc1ea5ba9b33e46b

  • SHA256

    a736c699fe879975bc8daa8525984ba514ae96a294f74d570dff0cbfd2117e24

  • SHA512

    d6c1392a886fafb3d750abb32dc4be6f5a01205d51e18cf0456eae7aecb2c6a9ea88e96c9880d7269577f013a91dd1e70e433938b835156ad63ad15b704e84ba

  • SSDEEP

    98304:jLuSoV+yTXcmw9ghSxaq+zRliwT6MAUzk2wQuvvsn+AwUbbXw:+BrBphSxa7zXRTkUzkYuG+AwUPX

Malware Config

Extracted

Family

systembc

C2

5.42.65.67:4298

localhost.exchange:4298

Signatures

  • SystemBC

    SystemBC is a proxy and remote administration tool first seen in 2019.

  • Blocklisted process makes network request 1 IoCs
  • VMProtect packed file 2 IoCs

    Detects executables packed with VMProtect commercial packer.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\a736c699fe879975bc8daa8525984ba514ae96a294f74d570dff0cbfd2117e24exeexe_JC.dll,#1
    1⤵
    • Blocklisted process makes network request
    • Suspicious behavior: EnumeratesProcesses
    PID:2436

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2436-133-0x00007FFAB8E90000-0x00007FFAB8E92000-memory.dmp

    Filesize

    8KB

  • memory/2436-135-0x00007FFAB8EA0000-0x00007FFAB8EA2000-memory.dmp

    Filesize

    8KB

  • memory/2436-134-0x00007FFA9B470000-0x00007FFA9BE66000-memory.dmp

    Filesize

    10.0MB

  • memory/2436-136-0x00007FFAB8190000-0x00007FFAB8192000-memory.dmp

    Filesize

    8KB

  • memory/2436-137-0x00007FFAB81A0000-0x00007FFAB81A2000-memory.dmp

    Filesize

    8KB

  • memory/2436-138-0x00007FFAB6960000-0x00007FFAB6962000-memory.dmp

    Filesize

    8KB

  • memory/2436-139-0x00007FFAB6970000-0x00007FFAB6972000-memory.dmp

    Filesize

    8KB

  • memory/2436-141-0x00007FFAB8EB0000-0x00007FFAB8EB2000-memory.dmp

    Filesize

    8KB

  • memory/2436-142-0x00007FFA9B470000-0x00007FFA9BE66000-memory.dmp

    Filesize

    10.0MB